Base station apparatus and communication control method
The object is achieved by providing a base station apparatus for performing time and frequency scheduling in uplink packet access with: an interference amount measurement part configured to measure an uplink interference amount for each interference amount measurement unit which comprises a predetermined period and a predetermined number of frequency blocks; an interference amount determination part configured to determine whether the uplink interference amount satisfies a predetermined condition; and an overload indicator reporting part configured to report an overload indicator to a neighboring cell when the predetermined condition is satisfied.
1. An eNode B comprising:
at least one memory storing instructions, and
at least one processor configured to execute the instructions to:
detect uplink interference conditions, and
in a case of a variation in the uplink interference conditions, transmit, through an interface between the eNode B and a neighboring eNode B, an indication, wherein the indication includes an overload indicator per resource block and wherein the resource block comprises one time slot and at least one subcarrier in a single carrier FDMA communication system.
2. The eNode B according to claim 1 ,
wherein the at least one processor is further configured to execute the instructions to allocate at least one resource block to a mobile station based on the indication.
3. The eNode B according to claim 1 , wherein
the indication indicates whether an interference level per a resource block is high or not.
4. The eNode B according to claim 1 , wherein
the indication identifies at least one of
a resource block indicating a high interference level, and
a resource block indicating a low interference level.
5. The eNode B according to claim 1 , wherein
the indication indicates an uplink interference level experienced by a cell.
6. The eNode B according to claim 1 , wherein
the at least one processor is further configured to execute the instructions to receive an uplink data via a physical uplink shared channel (PUSCH).
7. A method for an eNode B, the method comprising:
detecting uplink interference conditions, and
in a case of a variation in the uplink interference conditions, transmitting, through an interface between the eNode B and a neighboring eNode B, an indication, wherein the indication includes an overload indicator per resource block and wherein the resource block comprises one time slot and at least one subcarrier in a single carrier FDMA communication system.
8. The method according to claim 7 , further comprising:
allocating at least one resource block to a mobile station based on the indication.
9. The method according to claim 7 , wherein
the indication indicates whether an interference level per a resource block is high or not.
10. The method according to claim 7 , wherein
the indication identifies at least one of
a resource block indicating a high interference level, and
a resource block indicating a low interference level.
11. The method according to claim 7 , wherein
the indication indicates an uplink interference level experienced by a cell.
12. The method according to claim 7 , further comprising:
receiving an uplink data via a physical uplink shared channel (PUSCH).
13. A user equipment comprising: at least one memory storing instructions, and at least one processor configured to execute the instructions to:
communicate with an eNode B which is configured to transmit an indication, wherein the indication includes an overload indicator per resource block, to a neighboring eNode B in a case of a variation in uplink interference conditions, through an interface between the eNode B and the neighboring eNode B;
wherein the resource block comprises one time slot and at least one subcarrier in a single carrier FDMA communication system.
14. The user equipment according to claim 13 , wherein
the indication indicates whether an interference level per a resource block is high or not.
15. The user equipment according to claim 13 , wherein
the indication comprises at least one of
a resource block indicating a high interference level, and
a resource block indicating a low interference level.
16. The user equipment according to claim 13 , wherein
the indication indicates an uplink interference level experienced by a cell.
17. The user equipment according to claim 13 , wherein
the at least one processor is further configured to execute the instructions to transmit an uplink data via a physical uplink shared channel (PUSCH) to the eNode B.
18. The user equipment according to claim 13 , wherein
the at least one processor is further configured to execute the instructions to receive information related to an allocation for uplink transmission via a physical downlink control channel (PDCCH).